Universal joint.



H. J. PERKlNS. UNQ/ERSALJOiNT. APPLICATIQN HLED JAN. 22. I9l7 Patented Dec 18, 191?.

fig? l H HARRY J. PERKINS, F GRAND RAPIDS, MICHIGAN- UNIVERSAL JOINT.

To all whom it may concern:

Be it known thatl, HARRYJ. PERKINT a citizen of the United States of America, re-

siding at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements 1n Universal Joints; and I- do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a universal joint and has for its object and purpose the simplification of construction of devices of this character and especially in the lubrication of the same whereby a very inexpensive yetellicient joint may be produced Without the complicated lubricant containers heretofore necessary thereby reducing the number of parts and the expense of making the joint very materially.

For an understanding of the invention reference may be had to the accompanying drawings in which,

Figure 1 illustrates in side elevation the various parts which are used in the make up of a preferred type of joint.

Fig. 2- is a partial sectional and side elevation of the assembled joint.

Fig. 3 is a section on the line 33 of Fig. 2. v

Like reference characters refer to like parts throughout the several views of the drawings.

In the construction of the joint-a member 1 is provided which at one end is divided making the spaced forks 2 projecting outwardly from which are trunnions 3. Similarly there is provided opposite to the mem her 1 a member 4 similarly divided to make spaced forks 5 fromeach of which a trunnion 6 projects outwardly. Members 1 and 4: are the driving and driven members of the joint 'iind are located with respect. to each other in the assembled joint so that, trunnions 3 lie in a plane at right angles to the trunnions 6. A connecting member interposed between the driving and driven members comprising an annular casting 7 which in one side is fashioned with four slots or recesses 8 located 90 degrees from each other, while projecting from said member 7 between the slots are a plurality 01 screw threaded v(studs 9. Each slot 8 is adapted ,to receive a bushing 10 through which a circular opening is formed of a size Specification of Letters Patent.

Patented Dec. 18, 39%.

Application filed January 2 2. 1917. Serial No. 143,694.

to lposely receive a trunnion 3 or 6. The

outer surface of each bushing 10 is substantially a plane surface as indicated at 12.

the assembly of the joint one of the bushings 10is placed over each of the trunnions 3 and the member 1 is passed through the opening in member 7 so that the bushings seat in opposite-slots 8. After this is done a bushing 10 is placed over each trunnion 6 and'rsaid bushings entered into the slots 8 which are located'in a plane at right angles to the plane 1 of the slots which receive the trunnions 3. To secure theparts as thus assembled together a cup-like memberhaving a base l3 and an annular flange 14 is passed over the member '4 'js eatiiig: against the plane surfaces of thelbushings 10 with studs 9 passed through openings in the base 13'. Nuts 15 are threaded: on the parts together. The annular flange 14: covers the ends of the trunnions and substantially the entirecurved surface of the member 7. Member 7 is interiorly cored as indicated at 16 and a lubricant is held-therein passing through suitable openings as indicated in the bushings 10 to the trunnions 3 or 6 for the lubrication of the joint. The member 4 is interiorly bored and splined to receive a shaft 17 therein,the usual cap 18 and Washer 19-closing one end of member 4 While at the opposite end a plate 19 is positioned serving to retain the lubricant contained within the member 4. I

The joint structure disclosed is of very simple construction and requires no inclosed casing to contain the lubricant for the joint.

It may be manufactured at a very low cost. and is especially strong, durable. and efii cient.

1. In a universal joint, driving and driven members positioned end to end and at their adjacent ends provided withoutwardly proecting trunnions, a ring surneunding the adjacent ends of saidmeinbers -a (1 having recesses in one side thereoi', threa ed studs projecting from the rin'gTbetWee'n the recesses, bushings aroundsaid trunnions seated in the recesses, a cup-"likememher seated against said side of the ring andthe' bushings,'the studs passing through the base thereof and the flangtof said cup-like member covering the outer curved surface of the mug, and nuts screwed-onto sa1d studs against the base etntidfinember, substantially as described:-

2, 5121 e universe 393m (12'' members gesifiened end is end new adjacent havin holes 0 pass lubrieent t0 the trunends sf said members provides? 1% 011's nions from the interior of the ring, a cupwzudly prejecting iens. is hence ring like member seating against, the side of ,he ,1, sum-011ml al e115"; 0;? se' i menzring and em'ering said side and the on. er .bers A1161 having; rece ses is b *6. in one side curved surface thereof said studs passing thereof, shreaded item the threugh said cup-like member, and nuts on ring he said. studs, substantially as described. in con: In testimony whereof I eflix my signature. 1!; in the EARRY J. PERKINS.

g we 13m.

and eil'iven and seated in the recesses, said bushings 

